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glycophorin |
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glycophorin /gly·co·phor·in/ (-for´in) any of several related proteins that can project through the thickness of the cell membrane of erythrocytes; they attach to oligosaccharides at the outer cell membrane surface and to contractile proteins (spectrin and actin) at the cytoplasmic surface. glycophorin [-fôr′in] one of a group of proteins (A-E) that project through the membrane of red blood cells (RBCs). The outside end of glycophorins carries antigen of the MNS blood group. The sialic acid component of glycophorins contributes to the negative charge of the outer erythrocyte plasma membrane. Influenza virus can attach to sialic acid present on glycophorin A, B, C, D, and E and produce agglutination (does not enter RBCs). Malaria virus can attach to glycophorin A and C and infect RBCs. See also blood group. glycophorin a protein that projects through the thickness of the cell membrane of erythrocytes; it is attached to oligosaccharides at the outer cell membrane surface and to contractile proteins (spectrin and actin) at the cytoplasmic surface. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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XRCC1 polymorphisms: effects on aflatoxin B1-DNA adducts and glycophorin A variant frequency. The cells stained with CD31 (figure, B) and glycophorin, which indicated the presence of a mixture of megakaryocytic and erythroid cells. Still others, including David Aminoff of the University of Michigan at Ann Arbor, contend red-cell aging is accompanied by a loss of sialic acid residues from a membrane protein called glycophorin. |
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